By fossils, we mean traces of prehistoric animals such as bones, which become mineralized, or impressions of bones or organs that are left in stone.

我们所说的化石，指的是史前动物的遗迹，如已矿化的骨头，或留在石头上的骨头或器官的印痕。

youdao

I did a lot of writing the other week. By which I mean I signed my name a dozen times on some official papers.

上周我写了很多字，我指的是把我的名字在一些公文上写了几十次。

youdao

Often the same term is adopted by multiple stakeholders to mean very different things -- a situation which persists because of the ambiguity that occurs where there is no clear business definition.

不同的人员常常用同一术语表示非常不同的东西 —— 这种情况是由术语模糊性引起的，而后者是因为缺少清晰的业务定义。

youdao

Frost is a kind of materialist, by which I mean he calls attention to the circumstances of imagination, its limits and conditions.

弗罗斯特是个唯物主义者，这样说的原因是他引起了人们对,想象的环境的注意，它的限制和条件。

耶鲁公开课 - 现代诗歌课程节选

So it is a very thin and quick move, one on a second, by which I mean that one electrode, one set of neurons is the a very important piece of the puzzle, but not all that you need.

所以说，这是一个非常细微而迅速的动作，一秒钟一次，我是说一个电极，一组电极对于去猜整个谜很重要，但是你需要的远不止这些。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

So the payoff here is something like u1 if the goal keeper dives to the left is equal to 4, by which I mean there's a 40% chance of scoring.

收益u1表示门将扑向左路时,罚球者从左路进攻的收益是4,也就是说球被射入球门的概率是40%

耶鲁公开课 - 博弈论课程节选

And the fundamental problem is the same: a failure of alignment, by which I mean of the elusive ability to link strategic intent at the top of an organization to tactical performance at the bottom, via an unbroken internal narrative.

FORBES: World War I's Crucial Lesson for Today's Leaders

The idea here is to communicate that ultimate goal of economic production is to raise folks standard of living, by which we mean their level of consumption.

FORBES: How to Grow an Economy

Doug had a lot of nightmares when he was a baby, by which I mean between the ages of two and four.

NEWYORKER: The Other Place